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I have a set of 3D marker data attached on a body that rotates around a semiconstrained joint. I would like to find the center of rotation in threedimensional coordinate system (x,y,z). Do you know any matlab codes for this calculation? 
Subject: Center of Rotation in 3D motion From: Roger Stafford Date: 16 Nov, 2011 19:52:13 Message: 2 of 10 
"Serkan" wrote in message <j9vf76$e5v$1@newscl01ah.mathworks.com>... 
Thank very much Roger for your kind response. I will take a look at the techniques and resources you referred. I hope that you would be available to answer my questions if I had further along the road. 
"Roger Stafford" wrote in message <ja149d$2k4$1@newscl01ah.mathworks.com>... 
"Roger Stafford" wrote in message <ja149d$2k4$1@newscl01ah.mathworks.com>... 
Subject: Center of Rotation in 3D motion From: Roger Stafford Date: 16 Nov, 2011 22:57:11 Message: 6 of 10 
"Matt J" wrote in message <ja1a92$n0j$1@newscl01ah.mathworks.com>... 
Subject: Center of Rotation in 3D motion From: Roger Stafford Date: 16 Nov, 2011 23:20:28 Message: 7 of 10 
"Roger Stafford" wrote in message <ja1f47$96s$1@newscl01ah.mathworks.com>... 
Thank you guys! 
"Serkan" wrote in message <ja3dld$hrd$1@newscl01ah.mathworks.com>... 
Hi 
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